Coupling means for heaters



July 21, 1931 c, H, MORROW 1,815,723

COUPLING MEANS FOR HEATERS Filed Aug. 8, 1927 provide the manifold'illustrated inFig. lfor Patented July 21, 1931- f eLAnENoE .ieingrarssare? .oournincron rrnh'rnns" Application filed August 8,1927. SerialNo. 21 1,509.

This invention relates to coupling means for heaters whereby a pair of Ordinary domestic hot water heaters may be arranged and adapted for service. as in the nature of I anauxiliary, in, supplying hot water for-the radiators or heatingsystem in a home. f The invention relates specifically, to ,manifold castings Wher'ebyproper connection may .bemade betweenthe ater inlets and outlets '0f the heaters and the radiating system With the utmost convenience and neatness; and whereby a thermostat not usually employed with either a heater of the type to which reference has been made or such a heating sys tern as descr bed, may beincorporated in one of said castings in a manner in which it will function with the greatest effic ency.

The exact nature andfurther objects and advantages of my invention will be apparent from the following description taken in connection with the accompanying drawings in which Fig. 1 is a perspective View of one of the manifolds which forms apart of my invention; FigLZisa similar view of the'othermanifold ;Fig.3 is aifrontelevationofapair ot hot water heaters in'assembly according to. my invention n section along the line -4,1Fig. 3.

' Hotfwater heating units,'such as those to which I'ny'invention pertains, have become fairly standard in'th'e' art to the arrangement of their principalparts, and as illus-, trated in Fig. 3, such a heater comprises a heating coil 1 encased within a jacket 2 'mounted upon pedestal 3, the coil having a cold water inlet 4 at the back 'of the heater, a hot water outlet'5 atthe top, a door 6 at the front, a burner/Z, arranged beneath the coil, and a flue 8 adaptedto-carry off the products of combustion.

- The heaters are arrangedfor pipe threaded water connections. The mainpipes'of house heating systems however are of considerable diameter and'therefore arranged forflanged connections. Accord ngto'my invention, I

connection between the hot water outlets of a pair of heaters arranged as indicated in Figs. 3 aud t, and the hot water inletor riser of the radiating system. The manifold sour and Fig. 4 is a horizontal prises. a generally tubular member 9 having H. Moan-omen CLEVELAND, onto, AssIGnoR 'IQ THE I-IO'ISTREAM HEATER coivrrnnzior crinvnnenn, orrro, A CORPORATEQIQGF OHIO its endsnormally closed by plugs 21, down wardly extending threaded openings 10 each endadapted for'connection with the water outlets of the heaters, and medially Q:

thereof aflangedopening 11 adapted for direct connection with ihe upwardlyv extending riser 12 of the radiating system;

For the cold Water inlets of the heate'rsl provide likewise a manifold 13 having laterally extending threaded openings 14 at its ends, tlie ends being closed by plugs as before, and medially thereof a flanged opening 15 for nnmediate connection with the cold Water or return pipe 16 of the radiating system. I provide on'the casing 13 opposite the flanged opening 15 thereof an open ended well 19 adapted when in assembly as a in Figs. 3 tween the heaters. The extremity of the.

Well is threaded to receive the head 17 of a I, 5

thermostat, the thermostatic elements 18 of usual manner, being provided with a valve 7 controlled by the thermostatic elements 18 andin turn controlling the fuel supply to the burners 7 of the heaters, the manifold casting'13 being proportioned thus so that not only are the cold Water inlets of the heaters most conveniently accommodated, and the thermostatic elements positioned to be most sensitive to the cold Water temperature, but also "the head of the thermostat and adjust andt to project forwardly bef which may thus extend into the well to a U point in the line of flow of cold Water en-i tering the manifold through the flanged opening lfi. The thermostatoperates in'the ing mechanism thereof equally conveniently located in the front of the heaters yet clear of the doors thereof and well protected. The

manifold 13 may be arranged to accommodate a difference in elevation between the,

return pipe 16 and the coldwater inlet pipes eb pipeconnections 20 as indicated.

Occasionally] installation conditions re- .quire that the thermostat be placed at the outlet end ofthe' heaters. In such event one 'ofthe plugs 21 may be removed from the upper manifold casting, the thermostat insertedendwise into the casting, and the plug used to replace t e thermostat in the lower casting ends, the threads of the castings, the V thermostat head and the plugs being standard. Such a thermostat arrangement is shown in broken lines, Fig. 3, in which it will be noted that the thermostatic elements extend to a position adjacent the connection with the riser 1 2; r

What I claim is: A manifold adapted for connection to spaced twinwater heaters, and comprising a hollow body portion having two aligned ,7 horizontally extending arms, each provided with a vertical opening adapted for connection to oneof'said heaters, and having a rearward arm adapted for connection with a water-circulating pipe, said body portion intermediate its ends having a horizontal well arnialigned with saidrearward arm I I and extending forwardly and open at its end, whereby said well arm may receive the thermally responsive elements of a thermostat having its head positioned 'atthe well arm end opening, and the thermally responsive elements of said thermostat Will extend into the. path of flow between said rearward arm and said horizontally extended arms.

In testimony whereof I hereby affix' my signature.

CLARENCE H. MoRnoW. 

